6869799187 has 2 divisors, whose sum is σ = 6869799188. Its totient is φ = 6869799186.

The previous prime is 6869799109. The next prime is 6869799197. The reversal of 6869799187 is 7819979686.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6869799187 is a prime.

It is not a weakly prime, because it can be changed into another prime (6869799197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434899593 + 3434899594.

It is an arithmetic number, because the mean of its divisors is an integer number (3434899594).

Almost surely, 2^6869799187 is an apocalyptic number.

6869799187 is a deficient number, since it is larger than the sum of its proper divisors (1).

6869799187 is an equidigital number, since it uses as much as digits as its factorization.

6869799187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 70.

The square root of 6869799187 is about 82884.2517430181. The cubic root of 6869799187 is about 1900.9966319798.

The spelling of 6869799187 in words is "six billion, eight hundred sixty-nine million, seven hundred ninety-nine thousand, one hundred eighty-seven".